convexo-concave lens
n.
A lens having one surface convex and the opposite surface concave, with the concave surface having the greater curvature.
Words nearby convexo-concave lens
convex lens,
convex sole,
convexity,
convexo-,
convexo-concave,
convexo-concave lens,
convexo-convex,
convexo-convex lens,
convexo-plane,
convey,
conveyance